HYD Panel

Flight Simulation Hardware – Hydraulic & Fuel Control Panel

Overview

This HYD & FUEL panel replicates the hydraulic and fuel system control panels found in Airbus aircraft. It includes multiple pushbutton switch modules with FAULT and OFF/ON legends, one 7-segment display zone (for RAT), and a wide range of hydraulic and fuel switches organized per system.

The design includes a PCB, acrylic front panel, and component silk overlays to replicate accurate cockpit hardware interaction using Korry-style switches.

⚠️ Flight Simulation Only – Not for use in real aviation applications.

Panel Layout

The HYD & FUEL panel consists of two horizontally arranged system zones:

Top Half – Hydraulic System:

• GREEN, BLUE, and YELLOW hydraulic circuits.

• Switches for:

  • ENG 1 PUMP

  • ELEC PUMP (Blue)

  • PTU

  • ENG 2 PUMP

  • ELEC PUMP (Yellow)

• RAT MAN ON area (with display placeholder).

Bottom Half – Fuel System:

• Dual sets of L TK PUMPS and R TK PUMPS (1 and 2).

• CTR TK L XFR and CTR TK R XFR for center tank transfer.

• MODE SEL switch for auto/manual.

• X FEED switch.

• APU path indication between fuel lines.

• Clear hydraulic/fuel silkscreen paths connecting systems and engines.

PCB Details

Connectors & Interfaces

Dual 40-Pin Headers

• Located at the top-left and top-right.

• Interface for all Korry switch modules, LEDs, and signal traces.

• Pin silkscreen labeled 1–40 for each connector.

CONNECTION J2

CONNECTION J1

Terminal Blocks

• Two 2-pin screw terminal blocks for power input at each corner.

Switch Modules

• 14 Korry-style switch modules with:

  • TOP (FAULT) and BOTTOM (OFF/ON or MAN/AUTO) buttons.

  • 4-pin headers (K1–K14) for connecting each switch.

LEDs and Indicators

• Over 90 SMD yellow LEDs (D1–D90+) are distributed to:

  • Illuminate around each switch zone.

  • Backlight FAULT and ON indicators.

  • Highlight RAT MAN ON zone.

• Each LED is paired with a resistor (R1–R35 approx.) for current limiting.

Mounting and Assembly

• Acrylic panel matches PCB mounting holes for aligned sandwich assembly.

• Top silkscreen includes clear labels for:

  • HYDRAULIC: ENG PUMPs, ELEC PUMPs, PTU, RAT

  • FUEL: TK PUMPs, XFRs, MODE, FEED

  • Labeled flow paths and AUTO indicators.

Fabrication and Panel Fit

Acrylic Faceplate:

• CNC-milled to fit:

  • 14 Korry-style switch modules

  • Display window for RAT

• Engraved legends:

  • ENG 1 PUMP, ELEC PUMP, PTU, ENG 2 PUMP, RAT MAN ON

  • L TK PUMPS, CTR TK XFR, MODE SEL, R TK PUMPS

  • X FEED, APU, ENG 1, ENG 2, AUTO, FAULT, OFF, ON, MAN

• Color-coded design layers:

  • Red = Front Panel

  • Blue = Rear Panel

  • Green = Engraving

  • Orange = Switch Legends

PCB Design Reference

Routing view (KiCad style):

• Red = Top signal layer

• Blue = Bottom layer

• Yellow = Silkscreen outlines

• Clear via paths and LED networks for uniform lighting and function control

🔗 Attribution

• Version: HYD & FUEL Panel v1.0

• Project: OpenA3XX

• License: CC BY-SA 4.0

• Note: Design for simulation use only.